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EP3761748B1 - Procédé et appareil de commande d'opportunité de transmission - Google Patents

Procédé et appareil de commande d'opportunité de transmission Download PDF

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Publication number
EP3761748B1
EP3761748B1 EP20176437.0A EP20176437A EP3761748B1 EP 3761748 B1 EP3761748 B1 EP 3761748B1 EP 20176437 A EP20176437 A EP 20176437A EP 3761748 B1 EP3761748 B1 EP 3761748B1
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EP
European Patent Office
Prior art keywords
frame
sta
txop
value
access point
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP20176437.0A
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German (de)
English (en)
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EP3761748A1 (fr
Inventor
Hongjia SU
Jun Zhu
Yingpei LIN
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to EP22194530.6A priority Critical patent/EP4195859B1/fr
Publication of EP3761748A1 publication Critical patent/EP3761748A1/fr
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Publication of EP3761748B1 publication Critical patent/EP3761748B1/fr
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H04W74/0841—Random access procedures, e.g. with 4-step access with collision treatment
    • H04W74/085—Random access procedures, e.g. with 4-step access with collision treatment collision avoidance
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
    • H04W74/0816—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA] with collision avoidance
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0077—Transmission or use of information for re-establishing the radio link of access information of target access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/249—Reselection being triggered by specific parameters according to timing information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/34—Reselection control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/04—Scheduled access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]

Definitions

  • This application relates to the communications field, and in particular, to a transmission opportunity control method and an apparatus.
  • WLAN Wireless Local Area Network
  • TXOP Transmission Opportunity
  • AP Access Point
  • STA Non-Access Point Station
  • the AP may perform uplink and downlink transmission scheduling for different STAs on different time-frequency resources, so as to improve system resource utilization.
  • US 2015/0055546 A1 refers to methods and apparatus for indicating whether or not transmit opportunity (TXOP) sharing is allowed.
  • An exemplary method generally includes generating a frame; indicating, via a value of at least one bit of a field of the frame, whether to allow transmit opportunity (TXOP) sharing during which a relay is allowed to forward the frame in the same TXOP in which the frame was transmitted, and transmitting the frame.
  • wireless communication in a wireless network comprises obtaining a transmission opportunity period (TXOP) for communicating with an access point (AP) over a wireless communication channel.
  • TXOP transmission opportunity period
  • An announcement is sent to the AP to share the transmission opportunity period among wireless stations, as a multi-user transmission opportunity period for simultaneously transmitting data from said wireless stations to the AP on multiple uplink (UL) spatial streams over the wireless channel.
  • Correctly received UL frames received by the AP are acknowledged. Error recovery and backoff processing are performed upon loss of communication information based on frame type.
  • a method of wireless communication includes transmitting, via a first device, a first message, the first message indicating a duration of a transmission opportunity of the first device, receiving, via the first device, a second message; and decoding, via the first device, the second message to determine a new duration of the transmission opportunity.
  • This application provides a transmission opportunity control method and an apparatus, so as to improve an opportunity of an AP to be a TXOP holder, and improve resource utilization of a WLAN system.
  • a first aspect of this application provides a transmission opportunity control method, including: sending, by an access point, a first frame, where the first frame carries a TXOP handover enforcement THE indication field, the THE indication field is a first value or a second value, the first value is used to instruct a station that has accessed a channel to hand over a held TXOP to the access point, and the second value is used to instruct the station that has accessed the channel to hand over the held TXOP to the access point when a handover condition is satisfied.
  • the STA hands over the TXOP to the AP, so that a probability of scheduling a STA by the AP is improved, and resource utilization is improved.
  • a second aspect of this application provides an access point, including: a first transmitter, configured to send a first frame, where the first frame carries a TXOP handover enforcement THE indication field, the THE indication field is a first value or a second value, the first value is used to instruct a station that has accessed a channel to hand over a held TXOP to the access point, and the second value is used to instruct the station that has accessed the channel to hand over the held TXOP to the access point when a handover condition is satisfied.
  • the THE indication field is the first value, or the THE indication field is the second value and the station that has accessed the channel satisfies the handover condition; and the method further includes: receiving, by the access point, a second frame sent by the station that has accessed the channel, where the second frame is used to instruct to hand over the TXOP to the access point.
  • the handover condition includes that a time used by the station to obtain the channel through contention is greater than a handover threshold, where the handover threshold is a contention time that is provided by the access point for the station and that is used to contend for the channel, and the handover threshold is determined by the access point based on a network status, and is sent to the station.
  • a handover threshold is a contention time that is provided by the access point for the station and that is used to contend for the channel
  • a third aspect of this application provides a transmission opportunity control method, including: receiving, by an access point, a third frame, where the third frame carries first duration and a TXOP transfer grant TTG field, and the first duration is determined by a station that has accessed a channel based on a TXOP held by the station; and when the TTG field is a third value, sending, by the access point, a fourth frame to the station that has accessed the channel, where the fourth frame carries second duration, the second duration is determined based on a TXOP requested by the access point, the second duration is longer than the first duration, and the TXOP requested by the access point is obtained by extending the TXOP held by the station by a preset time.
  • the AP can hold a TXOP 2, so that resource utilization can be improved.
  • a fourth aspect of this application provides an access point, including: a second receiver, configured to receive a third frame, where the third frame carries first duration and a TXOP transfer grant TTG field, and the first duration is determined by a station that has accessed a channel based on a TXOP held by the station; and a second transmitter, configured to: when the TTG field is a third value, send a fourth frame to the station that has accessed the channel, where the fourth frame carries second duration, the second duration is determined based on a TXOP requested by the access point, the second duration is longer than the first duration, and the TXOP requested by the access point is obtained by extending the TXOP held by the station by a preset time.
  • the method further includes: when the TTG field is a fourth value, sending, by the access point, a fifth frame carrying the first duration.
  • the method further includes: holding, by the access point, the TXOP requested by the access point.
  • the method further includes: receiving, by the access point, a contention free end CF-End-X frame sent by the station that has accessed the channel, where the CF-End-X frame carries the second duration, and the CF-End-X frame is used to indicate that data transmission of the station that has accessed the channel during the first duration ends; and holding, by the access point, the TXOP requested by the access point.
  • a fifth aspect of this application provides a transmission opportunity control method, including: receiving, by a station, a first frame sent by an access point, where the first frame carries a TXOP handover enforcement THE indication field; and when the THE indication field is a first value, sending, by the station, a second frame to the access point, where information of the second frame is used to instruct to hand over a TXOP to the access point.
  • a sixth aspect of this application provides a station, including: a third receiver, configured to receive a first frame sent by an access point, where the first frame carries a TXOP handover enforcement THE indication field; and a third transmitter, configured to: when the THE indication field is a first value, send a second frame to the access point, where information of the second frame is used to instruct to hand over a TXOP to the access point.
  • the method further includes: when the THE indication field is a second value, determining, by the station, whether a handover condition is satisfied, and if the handover condition is satisfied, sending, by the station, the Second frame to the access point.
  • the handover condition includes: a time used by the station to obtain the channel through contention is greater than a handover threshold, where the handover threshold is a contention time that is provided by the access point for the station and that is used to contend for the channel.
  • a seventh aspect of this application provides a transmission opportunity control method, including: sending, by a station, a third frame to an access point, where the third frame carries first duration and a TTG field, the first duration is determined by the station based on a TXOP held by the station, the TTG field is a third value or a fourth value, the third value is used to indicate that TXOP handover is allowed, and the fourth value is used to indicate that TXOP handover is not allowed; and receiving, by the station, a fourth frame or a fifth frame sent by the access point, where the fourth frame carries second duration, the second duration is determined based on a TXOP requested by the access point, the second duration is longer than the first duration, the TXOP requested by the access point is obtained by extending the TXOP held by the station by a preset time, and the fifth frame carries the first duration.
  • An eighth aspect of this application provides a station, including: a fourth transmitter, configured to send a third frame to an access point, where the third frame carries first duration and a TTG field, the first duration is determined by the station based on a TXOP held by the station, the TTG field is a third value or a fourth value, the third value is used to indicate that TXOP handover is allowed, and the fourth value is used to indicate that TXOP handover is not allowed; and a fourth receiver, configured to receive a fourth frame or a fifth frame sent by the access point, where the fourth frame carries second duration, the second duration is determined based on a TXOP requested by the access point, the second duration is longer than the first duration, the TXOP requested by the access point is obtained by extending the TXOP held by the station by a preset time, and the fifth frame carries the first duration.
  • a fourth transmitter configured to send a third frame to an access point, where the third frame carries first duration and a TTG field, the first duration is determined
  • the receiving, by the station, a fourth frame or a fifth frame sent by the access point includes: when the TTG field is the third value, receiving, by the station, the fourth frame sent by the access point; or when the TTG field is the fourth value, receiving, by the station, the fifth frame sent by the access point.
  • the sending, by a station, a third frame to an access point, where the third frame carries first duration and a TTG field includes: sending, by the station, a last frame in the TXOP held by the station to the access point, where the last frame carries the first duration and the TTG field.
  • the TTG field is carried in the last frame, to help the STA complete transmission of the STA, and a third-party STA is in an awake state when the AP holds the TXOP.
  • the sending, by a station, a third frame includes: sending, by the station, a contention free end CF-End-X frame, where the CF-End-X frame carries the second duration, and the CF-End-X frame is used to indicate that data transmission of the station at the TXOP held by the station ends.
  • the CF-End-X frame helps determine TXOP handover, and avoid a transmission fault.
  • FIG. 1 is a schematic diagram of a WLAN deployment scenario. Both an AP and a STA need to be a TXOP holder through contention.
  • a purpose of a transmission opportunity control method provided in the embodiments of this application is to increase an opportunity for holding a TXOP by the AP, so that the AP has more opportunities to schedule each STA, and resource utilization is improved.
  • FIG. 2 is a transmission opportunity control method, including the following steps: S201.
  • An AP sends a first frame carrying a TXOP handover enforcement (TXOP Handover Enforcement, THE) indication field.
  • TXOP Handover Enforcement, THE TXOP Handover Enforcement
  • the first frame may be a beacon frame (Beacon).
  • the AP may send the beacon frame carrying the THE indication field to a STA within a beacon frame interval (Beacon Interval), where the beacon frame is used to instruct the STA in the beacon frame interval to hand over a TXOP.
  • Beacon Interval beacon frame interval
  • a value of the THE indication field is a first value or a second value.
  • the first value (for example, 1) is used to instruct a STA that has accessed a channel to hand over a held TXOP to the AP
  • the second value (for example, 0) is used to instruct the STA that has accessed the channel to hand over the held TXOP to the AP when a handover condition is satisfied. That is, the first value instructs the STA to hand over the TXOP unconditionally
  • the second value instructs the STA to determine, based on a condition, whether to hand over the TXOP.
  • the AP may set a value of the THE indication field based on a requirement and a network status. For example, if a quantity of accessed STAs is greater than a preset value, and the AP needs to schedule a plurality of STAs, the AP may set the THE indication field to the first value.
  • a STA successfully accesses a channel after completing backoff, and records a time used from starting the backoff to completing the backoff.
  • DIFS Distributed Inter Frame Space
  • the STA parses a value of the THE indication field after receiving the first frame, and if the THE indication field is a first value, S204 is performed, or if the THE indication field is a second value, S205 is performed.
  • S201 needs to be performed before S203 in this embodiment, but an execution sequence between S201 and S202 and an execution sequence between S202 and S203 are not limited to the sequence shown in FIG. 2 .
  • the STA sends a second frame to the AP, where the second frame is used to instruct to hand over a TXOP to the AP.
  • the STA determines whether a handover condition is satisfied, and if the handover condition is satisfied, S206 is performed, or if the handover condition is not satisfied, S207 is performed.
  • the handover condition is that a time used by the STA to obtain the channel through contention is greater than a handover threshold.
  • the handover threshold is a contention time that is provided by the access point for the station and that is used to contend for the channel. STAs may contend for the channel within the contention time, and cannot contend for the channel after the time expires.
  • the handover threshold is an average value of time periods used by the STA in previous five times of channel contention.
  • the AP may determine the handover threshold based on a network status. For example, a network load amount, a quantity of accessed STAs, an average quantity of times of backoff collision between stations, or the like may be used as a basis for determining the handover threshold by the AP. Further, the AP may further adjust a value of the handover threshold based on a value of the network status.
  • the handover threshold may be carried in a management frame, a control frame, or a data frame sent by the AP to the STA.
  • the STA sends a second frame to the AP, where the second frame is used to instruct to hand over the TXOP to the AP.
  • the second frame in this embodiment may be a management frame, a control frame, or a data frame that carries TXOP handover information, or may be a newly defined frame different from that in the prior art.
  • the STA continues to hold the current TXOP.
  • the AP obtains a TXOP holding right, and performs downlink multi-STA data transmission, sends a trigger frame to trigger a random access, performs uplink multi-STA transmission, or the like at the TXOP.
  • FIG. 4 is a schematic diagram of frame interaction in the method shown in FIG. 2 .
  • the AP may further feed back an ACK to the STA.
  • the ACK in this embodiment is further used to notify the STA that the AP starts to hold the TXOP.
  • the STA can hand over the held TXOP to the AP, and therefore the AP can be a TXOP holder through the TXOP handover even if the AP fails to obtain the channel through contention. Therefore, a probability of holding a TXOP by the AP is improved, a probability of scheduling a STA by the AP is improved, and system resource utilization is improved.
  • FIG. 5 is another transmission opportunity control method according to an embodiment of this application.
  • a difference from the method shown in FIG. 4 is that after a STA completes holding of a TXOP 1, an AP can hold a TXOP 2, and the new TXOP holder may break through a limit of an original TXOP length.
  • the method shown in FIG. 5 includes the following steps.
  • TXOP Transfer Grant TTG
  • the first duration is determined by the STA based on a TXOP held by the STA.
  • a network allocation vector (Network Allocation Vector, NAV) in the third frame is set to the first duration.
  • NAV Network Allocation Vector
  • the TTG field is a third value or a fourth value.
  • the third value (for example, 1) is used to indicate that TXOP handover is allowed, and the fourth value (for example, 0) is used to indicate that TXOP handover is not allowed.
  • the STA may set a value of the TTG field based on a requirement. A bit size occupied by the TTG field may be determined based on an actual requirement. In this embodiment, to reduce resource overheads, the TTG field is defined as 1 bit.
  • the AP parses a value of the TTG field, and if the TTG field is a third value, S503 is performed, or if the TTG field is a fourth value, S504 is performed.
  • the AP sends a fourth frame to the STA that has accessed the channel, where the fourth frame carries second duration, and the second duration is longer than the first duration.
  • the second duration is determined based on a TXOP requested by the AP.
  • the TXOP requested by the AP is obtained by extending the TXOP held by the STA by a preset time. Specifically, an NAV in the fourth frame is set to the second duration.
  • the AP sends a fifth frame to the STA that has accessed the channel, where the fifth frame carries the first duration.
  • the STA sends a contention free end (Contention Free End, CF-End-X) frame to the AP, where the CF-End-X frame carries the second duration, and the CF-End-X frame is used to indicate that data transmission of the STA at a TXOP 1 ends.
  • CF-End-X contention free end
  • a purpose of S505 is to clearly notify the AP that transmission of the STA at the TXOP 1 ends, and the AP may start to hold a TXOP 2. Therefore, a communication conflict can be avoided.
  • the AP holds a requested TXOP 2.
  • a third-party device that cannot identify a TTG field directly sets an NAV of the third-party device based on relatively long duration.
  • TTG 1 is carried in a last frame (data of a deep color) sent by the STA to the AP.
  • a value of a TTG field is 1, and an NAV is the second duration.
  • TTG 0, or a TTG field is carried, and an NAV is the first duration.
  • FIG. 7 is another transmission opportunity control method according to an embodiment, and the method includes the following steps:
  • the STA sends an RTS.
  • RTS For a specific form of the RTS, refer to the prior art.
  • the AP replies with a CTS.
  • a difference from a CTS defined in the prior art is that the CTS carries the second duration.
  • resource utilization of a WLAN system can be improved.
  • FIG. 9 is a schematic structural diagram of an access point shown in FIG. 2 , and the access point includes a first transmitter, a first processor, and a first receiver.
  • the first transmitter is configured to send a first frame
  • the first receiver is configured to receive a second frame sent by a station that has accessed a channel
  • the first processor is configured to: determine a handover threshold based on a network status, and send the handover threshold to the station.
  • a specific function implementation of the access point, and the like refer to FIG. 2 .
  • a structure of an access point shown in FIG. 5 includes a second receiver, a second transmitter, and a second processor.
  • the second receiver is configured to receive a third frame.
  • the second transmitter is configured to: when a TTG field is a third value, send a fourth frame to a station that has accessed a channel; and when the TTG field is a fourth value, send a fifth frame to the station that has accessed the channel.
  • the second processor is configured to: after the second transmitter sends the fourth frame to the station that has accessed the channel, hold a TXOP requested by the access point.
  • a structure of a station shown in FIG. 2 includes a third receiver, a third transmitter, and a third processor.
  • the third receiver is configured to receive a first frame
  • the third transmitter is configured to send a second frame
  • the third processor is configured to: implement a determining process, and hold a current TXOP.
  • a structure of a station shown in FIG. 5 includes a fourth transmitter and a fourth receiver.
  • the fourth transmitter is configured to send a third frame and a CF-End-X
  • the fourth receiver is configured to receive a fourth frame or a fifth frame.
  • An access point shown in FIG. 7 includes a fifth receiver, a fifth transmitter, and a fifth processor.
  • the fifth receiver is configured to receive a sixth frame and an eighth frame
  • the fifth transmitter is configured to send a seventh frame
  • the fifth processor is configured to hold a TXOP 2.
  • a station shown in FIG. 7 includes a sixth transmitter and a sixth receiver.
  • the sixth transmitter is configured to send the sixth frame and the eighth frame
  • the sixth receiver is configured to receive the seventh frame.
  • the foregoing access point and station can implement a change of a TXOP holder from the station to the access point through frame interaction, so as to improve a probability of scheduling a STA by the access point, and improve resource utilization.

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Claims (9)

  1. Station non de point d'accès, STA, dans un réseau local sans fil, WLAN, la STA comprenant :
    • un récepteur configuré pour recevoir une première trame depuis un point d'accès, AP, la première trame transportant un champ d'indication d'application de transfert d'opportunité de transmission, TXOP, THE,
    dans laquelle le champ d'indication THE est une première valeur ou une seconde valeur, la première valeur est utilisée pour donner pour instruction à la STA qui a accédé à un canal de transférer une TXOP détenue à l'AP, et la seconde valeur est utilisée pour donner pour instruction à la STA de transférer la TXOP détenue à l'AP lorsqu'une condition de transfert est satisfaite (S 201),
    • lorsque le champ d'indication THE est la première valeur, un émetteur de la STA est configuré pour envoyer une seconde trame à l'AP, des informations de la seconde trame étant utilisées pour donner pour instruction de transférer la TXOP détenue par la STA de la STA à l'AP (S 204),
    • lorsque le champ d'indication THE est la seconde valeur, un processeur de la STA est configuré pour déterminer si la condition de transfert est satisfaite ou non, et si la condition de transfert est satisfaite, l'émetteur de la STA est configuré pour envoyer la seconde trame à l'AP.
  2. STA selon la revendication 1, dans laquelle la première trame est une trame balise.
  3. STA selon l'une quelconque des revendications 1 à 2, dans laquelle la seconde trame est une trame de gestion, une trame de commande, ou une trame de données transportant des informations de transfert TXOP.
  4. STA selon la revendication 1, dans laquelle le récepteur est en outre configuré pour recevoir un signal ACK en réponse à la seconde trame.
  5. Point d'accès, AP, dans un réseau local sans fil, WLAN, l'AP comprenant :
    • un émetteur configuré pour envoyer une première trame à une station non de point d'accès (S 201), STA, la première trame transportant un champ d'indication d'application de transfert de TXOP, THE,
    dans lequel le champ d'indication THE est une première valeur ou une seconde valeur, la première valeur est utilisée pour donner pour instruction à la STA qui a accédé à un canal de transférer une TXOP détenue à l'AP, et la seconde valeur est utilisée pour donner pour instruction à la STA de transférer la TXOP détenue à l'AP lorsqu'une condition de transfert est satisfaite (S 201) ;
    • un récepteur configuré pour recevoir une seconde trame depuis la STA (S 204) lorsque :
    o le champ d'indication THE indiquait la première valeur, ou
    o le champ d'indication THE indiquait la seconde valeur et la condition de transfert est satisfaite, des informations de la seconde trame étant utilisées pour donner pour instruction de transférer la TXOP détenue par la STA de la STA à l'AP (S 204).
  6. AP selon la revendication 5, dans lequel
    l'émetteur est en outre configuré pour envoyer des données multi-utilisateurs en liaison descendante dans la TXOP ; ou
    l'émetteur est en outre configuré pour envoyer une trame de déclenchement afin de programmer un déclenchement d'un accès aléatoire ou pour réaliser une transmission multi-STA en liaison montante dans la TXOP.
  7. AP selon la revendication 5, dans lequel la première trame est une trame balise.
  8. AP selon la revendication 5, dans lequel la seconde trame est une trame de gestion, une trame de commande, ou une trame de données transportant des informations de transfert de TXOP.
  9. AP selon la revendication 5, dans lequel l'émetteur est en outre configuré pour transmettre un signal ACK en réponse à la seconde trame.
EP20176437.0A 2015-12-28 2016-11-24 Procédé et appareil de commande d'opportunité de transmission Active EP3761748B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP22194530.6A EP4195859B1 (fr) 2015-12-28 2016-11-24 Procédé et appareil de commande d'opportunité de transmission

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201511003316.7A CN106922035B (zh) 2015-12-28 2015-12-28 一种传输机会控制方法及装置
PCT/CN2016/107093 WO2017114040A1 (fr) 2015-12-28 2016-11-24 Procédé pour commander une opportunité de transmission et dispositif associé
EP16880830.1A EP3383122B1 (fr) 2015-12-28 2016-11-24 Procédé pour commander une opportunité de transmission et dispositif associé

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US20200236597A1 (en) 2020-07-23
US20180310211A1 (en) 2018-10-25
CN106922035A (zh) 2017-07-04
EP3383122A4 (fr) 2018-11-14
EP3383122A1 (fr) 2018-10-03
WO2017114040A1 (fr) 2017-07-06
US11683732B2 (en) 2023-06-20
EP4195859A1 (fr) 2023-06-14
EP3383122B1 (fr) 2020-05-27
CN106922035B (zh) 2019-04-16
US10638384B2 (en) 2020-04-28
EP3761748A1 (fr) 2021-01-06
EP4195859B1 (fr) 2024-07-31

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